scholarly journals Spontaneous dimer order, excitation spectrum and quantum-phase transitions in the J1-J2 Heisenberg model

2000 ◽  
Vol 80 (8) ◽  
pp. 1483-1498 ◽  
Author(s):  
Valeri N. Kotov ◽  
Jaan Oitmaa ◽  
Oleg Sushkov ◽  
Zheng Weihong
Keyword(s):  
Phase Transitions ◽  
Excitation Spectrum ◽  
Heisenberg Model ◽  
Quantum Phase Transitions ◽  
Quantum Phase

scholarly journals Quantum Phase Transitions in the Kitaev-Heisenberg Model on a Single Hexagon

2015 ◽  
Vol 127 (2) ◽  
pp. 318-320 ◽  
Author(s):  
D. Gotfryd ◽  
A.M. Oleś
Keyword(s):  
Phase Transitions ◽  
Heisenberg Model ◽  
Quantum Phase Transitions ◽  
Quantum Phase

scholarly journals Magnetic quantum phase transitions of the two-dimensional antiferromagnetic J 1 -J 2 Heisenberg model

2015 ◽  
Vol 112 (4) ◽  
pp. 47002 ◽  
Author(s):  
T. P. Cysne ◽  
M. B. Silva Neto
Keyword(s):  
Phase Transitions ◽  
Heisenberg Model ◽  
Quantum Phase Transitions ◽  
Quantum Phase ◽  
Two Dimensional

scholarly journals Quantum Phase Transitions in the Triangular-Lattice Bilayer Heisenberg Model

1998 ◽  
Vol 81 (21) ◽  
pp. 4732-4735 ◽  
Author(s):  
Rajiv R. P. Singh ◽  
Norbert Elstner
Keyword(s):  
Phase Transitions ◽  
Triangular Lattice ◽  
Heisenberg Model ◽  
Quantum Phase Transitions ◽  
Quantum Phase

Quantum phase transitions

2004 ◽  
Vol 174 (8) ◽  
pp. 853 ◽  
Author(s):  
Sergei M. Stishov
Keyword(s):  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Quantum Phase

scholarly journals Magnetic Field- and Pressure-Induced Quantum Phase Transitions in NH4CuCl3

2005 ◽  
Vol 159 ◽  
pp. 241-245 ◽  
Author(s):  
Masashi Fujisawa ◽  
Budhy Kurniawan ◽  
Toshio Ono ◽  
Hidekazu Tanaka
Keyword(s):  
Magnetic Field ◽  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Quantum Phase

scholarly journals Chiral Waveguide Optomechanics: First Order Quantum Phase Transitions with Z3 Symmetry Breaking

2020 ◽  
Vol 125 (26) ◽  
Author(s):  
D. D. Sedov ◽  
V. K. Kozin ◽  
I. V. Iorsh
Keyword(s):  
Phase Transitions ◽  
Symmetry Breaking ◽  
Quantum Phase Transitions ◽  
Quantum Phase ◽  
First Order

scholarly journals Interaction between Different Kinds of Quantum Phase Transitions

2021 ◽  
Vol 3 (2) ◽  
pp. 253-261
Author(s):  
Angel Ricardo Plastino ◽  
Gustavo Luis Ferri ◽  
Angelo Plastino
Keyword(s):  
Phase Transitions ◽  
Nuclear Physics ◽  
Body Problem ◽  
Quantum Phase Transitions ◽  
Quantum Phase ◽  
Exactly Solvable Models ◽  
Solvable Models ◽  
Many Body ◽  
Pairing Interaction ◽  
Exactly Solvable

We employ two different Lipkin-like, exactly solvable models so as to display features of the competition between different fermion–fermion quantum interactions (at finite temperatures). One of our two interactions mimics the pairing interaction responsible for superconductivity. The other interaction is a monopole one that resembles the so-called quadrupole one, much used in nuclear physics as a residual interaction. The pairing versus monopole effects here observed afford for some interesting insights into the intricacies of the quantum many body problem, in particular with regards to so-called quantum phase transitions (strictly, level crossings).

scholarly journals Quantum phase transitions in superconductor–quantum-dot–superconductor Josephson structures with attractive intradot interaction

2020 ◽  
Vol 102 (21) ◽  
Author(s):  
Yu-Chun Hsu ◽  
Wu-Jing Chen ◽  
Chien-Te Wu
Keyword(s):  
Phase Transitions ◽  
Quantum Dot ◽  
Quantum Phase Transitions ◽  
Quantum Phase

scholarly journals Entanglement View of Dynamical Quantum Phase Transitions

2021 ◽  
Vol 126 (4) ◽  
Author(s):  
Stefano De Nicola ◽  
Alexios A. Michailidis ◽  
Maksym Serbyn
Keyword(s):  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Quantum Phase

scholarly journals Quantum phase transitions in a quasi-one-dimensional Ising quantum magnet in transverse fields

2021 ◽  
Vol 103 (14) ◽  
Author(s):  
Xiaowen Zhang ◽  
Zheng He ◽  
Yiqing Hao ◽  
Yao Shen ◽  
Shoudong Shen ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Quantum Phase ◽  
One Dimensional ◽  
Quantum Magnet ◽  
Transverse Fields
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